Last Updated: February 25, 2016
·
1.067K
· jrcryer

Check Gmail SMTP Authentication

To test username and password authentication with Google SMTP server.

openssl s_client -starttls smtp -connect smtp.gmail.com:587 -crlf -ign_eof
ehlo smtp.gmail.com
auth login
<base64 encoded username>
<base64 encoded password>